Halloween is a big event on social media. It's no longer just an occasion for retailers, who set to rake in £330m in the UK this year, but a chance for brands across multiple industries to create content that will be seen - and hopefully shared - by millions.

Samsung even managed to share the same video multiple times throughout the day, with a different message each time, to keep it fresh but ensure that it reached the maximum amount of people.

Oreo

Vine was certainly popular this year for Halloween this year, with numerous brands opting to make funny looping videos. Oreo show another example of why they constantly dominate social media with this brilliantly made Halloween monster.

Lowes

Lowes have built a reputation for helpful, actionable and quick social media videos, and they've stuck to their winning formula for this Halloween-themed video. It's no wonder their fans were delighted. Think of ways to enjoy the holiday without varying too far from what your fans expect, and your seasonal content will always perform well.

Mini

Cars and Halloween don't have too much in common, but Mini have got in on the game with a series of images that show off Mini accessories. With that familiar orange border and monochrome colour scheme, there's some definite subliminal messaging going on!

After their #Bendgate tweets, KitKat established themselves as the new Oreo - and their Halloween pranks today have backed that up. Definitely worth a look, if you don't follow them already.

And the losers? Walmart...

Walmart hit hot water early this week, after an eagle-eyed shopper spotted that they were selling "Fat Girl Costumes".

WIthin hours of the discovery, #Fatgirlcostumes was trending on Twitter, and thousands of users were demanding an explanation. The story was picked up and published by thousands of news sites, including Jezebel, Time, People and CNN, before Walmart decided to issue an apology.

"This should never have been on our site. It is unacceptable, and we apologise." announced a spokesperson for the company. They also promised to ensure that this never happens again.

The apology wasn't the end of the matter, though...while social media users waited to see what would replace the offensive headline, they found a string of offensive product descriptions, including racist American-Indian outfits, Gypsy costumes and a "Fat Tinkerbell" costume for men with a description beginning...

Tinkerbell has really let herself go since she has been out of work for so many years! 